556997 has 8 divisors (see below), whose sum is σ = 650496. Its totient is φ = 466992.

The previous prime is 556987. The next prime is 556999. The reversal of 556997 is 799655.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 556997 - 2⁴ = 556981 is a prime.

It is a plaindrome in base 13.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 556997.

It is not an unprimeable number, because it can be changed into a prime (556999) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 518 + ... + 1175.

It is an arithmetic number, because the mean of its divisors is an integer number (81312).

2⁵⁵⁶⁹⁹⁷ is an apocalyptic number.

It is an amenable number.

556997 is a deficient number, since it is larger than the sum of its proper divisors (93499).

556997 is a wasteful number, since it uses less digits than its factorization.

556997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1747.

The product of its digits is 85050, while the sum is 41.

The square root of 556997 is about 746.3223164290. The cubic root of 556997 is about 82.2781058963.

The spelling of 556997 in words is "five hundred fifty-six thousand, nine hundred ninety-seven".